@polygonjs/polygonjs/dist/src/core/thirdParty/Mapbox/layers/Buildings.js

node-based WebGL 3D engine https://polygonjs.com

"use strict";
export const BuildingsLayer = {
  id: "3d-buildings",
  source: "composite",
  "source-layer": "building",
  filter: ["==", "extrude", "true"],
  type: "fill-extrusion",
  minzoom: 15,
  paint: {
    "fill-extrusion-color": "#aaa",
    // use an 'interpolate' expression to add a smooth transition effect to the
    // buildings as the user zooms in
    "fill-extrusion-height": ["interpolate", ["linear"], ["zoom"], 15, 0, 15.05, ["get", "height"]],
    "fill-extrusion-base": ["interpolate", ["linear"], ["zoom"], 15, 0, 15.05, ["get", "min_height"]],
    "fill-extrusion-opacity": 0.6
  }
};